Sheriff's deputies said they plan to return to the Lakewood Forest Preserve on Thursday to continue searching for a mother who vanished days earlier.

Maria Carlsen, 61, was last seen by family members at her home in a private, upscale subdivision in North Barrington at about 2 p.m. Monday, family members told police.

Carlsen was supposed to fly to Boca Raton, Fla., on Tuesday to join her husband at their vacation home there, but when a limo showed up to drive her to O'Hare International Airport, her bags were packed but she was nowhere to be found.

"This is a woman that comes from an affluent area and at this point, we don't know what transpired," said Lake County Sheriff Mark Curran. "Anybody that has any insight into her mental state, what was going on, transpiring as far as her life, anything along those lines, that would certainly be helpful," said Curran.

Investigators found Carlsen's BMW in the parking lot of J and D's Bar and Grill, roughly a mile from her home. On the passenger's seat appeared to be her wallet and some personal documents.

Police said her purse is missing, but her credit cards have not been used in the last day.

"They're going to cover the entire perimeter around J and D's and then if nothing develops, broaden the search," said Curran.

Carlsen stands about 5 feet, 4 inches tall and weighs about 115 pounds. She has brown hair with red highlights. Anyone with information is asked to call the Criminal Investigations Division of the Lake County Sheriff's Office at 847-377-4000.